Are Philadelphia Tankless Water Heaters Practical

Posted by on Jan 28, 2014 in Tankless Water Heater Repair Philadelphia, Water Heater Repair Philadelphia | 0 comments

There is a lot of discuss the advantages and disadvantages of tankless water heaters verses tank water heaters. Water Heater Repair Philadelphia is going to begin a discussion on tankless heaters today, pointing out a few of the claims and going over the realities. They have benefits and drawbacks over traditional water heaters and it might just depend upon exactly what ones specific usage requirements are that will determine which kind of the proper one for ones house. Heaters Water Heater Repair Philadelphia v

The standard theory of using a tankless water heater is among being energy efficient. Water is heated up as it is utilized, and not stored in the large tank of a standard water heater, regularly warmed so it is ready whenever it is to be utilized. Likewise, since they can hang on the wall and take up essentially no space at all, they are really practical.

Electrical Usage

Because tankless water heaters do require 240 volts of electricity and approximately 160 amps to establish, one may need to have ones electrical box upgraded to accommodate the power need of the system. For instance, and not to obtain excessively technical here, a standard tank water heater has around a 4500 watt heating element, verses four, 7000 watt elements of a whole-house tankless one.

As for efficiency, According to the Partnership for Advancing Technology in Housing (PATH), and supported by Housing and Urban Development (HUD), “further testing is needed to determine if electric tankless water heaters will match the efficiency of tank-type heaters.”

Appropriate Sizing

Tankless systems are sized by the flow rate determined in gallons per minute (GPM). One will have to identify when and what ones greatest demand of hot water is to correctly figure out the finest size device to get.

Below is the formula for figuring this out from Keltec Inc:

Flow rate (GPM)
Temperature rise ( T ºF)

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To determine the size and kilowatt rating you need, apply this formula:
“The result of this formula is the maximum kW needed to accomplish your project requirements for on-demand heated water. Other media will vary slightly. This formula is a nearly universal method of calculation for energy input to yield temperature at required water flow.”

Water Quality on the Tankless System

The quality of the water one has at home should be analyzed also in order to get the most from a tankless water heater. If ones water is high in mineral content, like calcium, they will build up on the coils gradually and reduce the life expectancy of the unit. If the water hardness at ones home is above 11 grains per gallon, a water softener would be advised. Producers do include de-liming directions and usually have a warning light on the system to determine when this should be performed. Nonetheless, keep in mind what the manufacturers guarantee covers. If it is just against manufacturer’s defect, this will not cover any repairs needed due to ones water quality. In optimal conditions, a tankless system will last much longer than a conventional water heater, which can assist validate the higher preliminary equipment cost and installation costs, but one will have to bear in mind keeping it running correctly to make back ones financial investment.

Service and Repair Costs

These costs are usually higher for a tankless system than a standard water heater, just to have a heads up. Many individuals normally do not have their traditional water heater services too regularly (sadly) but it is suggested to have a tankless unit expertly serviced once a year.

Instantaneous Hot Water

This should not be that huge of a deal, but though manufacturers do market instantaneous hot water. Undoubtedly one realized that it takes a moment for the hot water being heated immediately to go through ones hot water pipe to the faucet or shower. Though, if one is just using the faucet a little the tankless heater’s burner may not fire up if the faucet is not opened up more. As an example, a flow rate of one-half gallons to 2 gallons per minute is needed for electric tankless heaters to heat water.

Depending upon the quantity of hot water one needs at the very same time, even more than one unit will require to be installed. This is easy to do, however clearly increases the equipment costs while doing so.

Equipment and Set Up Costs

An average cost range for tankless heaters is around $800 to $1200. A normal storage tank water heater it is around $300 to $500. Set up expenses are about $1200 and $300 respectively then too. One will, once again, most likely require an electrical upgrade, in addition to a different gas pipe setup (if utilizing a gas tankless heater), and a brand-new ventilation system. An advantage of changing ones water heater with a system comparable to the existing one is many of these upgrades will not be needed – they are currently st up.

Advantages of Going Tankless

No stored water, which in itself has numerous benefits. First, if there was to be a leak with a tank heater, there could possibly be water damage to ones house. Likewise, one ought to flush the tank at least when a year to keep mineral build up reduced, however there is the potential for smelly water smells, bad tasting water, and the development of legionella bacteria in the tank if it is not at a sufficient temperature. Traditional water heaters take up far more space also.

The previous video shows the advantages of tankless water heaters and this video expresses some of the drawbacks of tankless water heaters:


Here is what Consumer Reports has found: “Gas tankless water heaters, which use high-powered burners to quickly heat water as it runs through a heat exchanger, were 22 percent more energy efficient on average than the gas-fired storage-tank models in our tests. That translates into a savings of around $70 to $80 per year, based on 2008 national energy costs. But because they cost much more than storage water heaters, it can take up to 22 years to break even longer than the 20-year life of many models. Moreover, our online poll of 1,200 readers revealed wide variations in installation costs, energy savings, and satisfaction.”

The Center for Energy and Environment says that “A 37% savings of water heating energy per household was found for replacing a typical natural draft storage water heater with a tankless one. However, this savings was not enough to offset the high incremental cost resulting in paybacks from 20 to 40 years.”

Finally, the National Rural Electric Cooperative Association concludes that “Tankless water heaters generally aren’t as energy efficient as well-kept tank water heaters. Insulation, temperature setback, timers, and heat traps can all lower energy costs with tank water heaters.”

One point to weigh is that yes, tankless systems will utilize less gas than a conventional gas water heater which does have its ecological benefits. However, a great deal of electricity is utilized, for electricity takes longer to heat up water than gas. And, the majority of electrical power is produced from burning nonrenewable fuel sources.


As with any sort of technology, the field of water heating is ever progressing. Efficiency advances are increasing with traditional gas and especially electric storage tank water heaters. There are various benefits with tankless and standard heaters that one will require to consider. Do not think twice to let Water Heater Repair Philadelphia know of any concerns you might have in the choice process.

Check out our Tankless Water Heater Repair Philadelphia page too!